GB1547213A - Food grade phosphoric acid from wet process acid - Google Patents
Food grade phosphoric acid from wet process acidInfo
- Publication number
- GB1547213A GB1547213A GB32812/76A GB3281276A GB1547213A GB 1547213 A GB1547213 A GB 1547213A GB 32812/76 A GB32812/76 A GB 32812/76A GB 3281276 A GB3281276 A GB 3281276A GB 1547213 A GB1547213 A GB 1547213A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- wet process
- food grade
- grade phosphoric
- phosphoric acid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/18—Phosphoric acid
- C01B25/234—Purification; Stabilisation; Concentration
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/604,519 US3993736A (en) | 1975-08-14 | 1975-08-14 | Food grade phosphoric acid from wet process acid |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1547213A true GB1547213A (en) | 1979-06-06 |
Family
ID=24419924
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB32812/76A Expired GB1547213A (en) | 1975-08-14 | 1976-08-06 | Food grade phosphoric acid from wet process acid |
Country Status (12)
Country | Link |
---|---|
US (1) | US3993736A (en) |
JP (1) | JPS5223597A (en) |
BE (1) | BE845149A (en) |
BR (1) | BR7605322A (en) |
CA (1) | CA1071836A (en) |
DE (1) | DE2635912A1 (en) |
ES (1) | ES450702A1 (en) |
FR (1) | FR2320902A1 (en) |
GB (1) | GB1547213A (en) |
IL (1) | IL49927A (en) |
NL (1) | NL7608884A (en) |
ZA (1) | ZA764436B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4250155A (en) | 1978-06-09 | 1981-02-10 | Gardinier, Inc. | Method of purifying phosphoric acid after solvent extraction |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5551707A (en) * | 1978-10-12 | 1980-04-15 | Nippon Chem Ind Co Ltd:The | Crude phosphoric acid purifying method |
FR2447348A1 (en) * | 1979-01-24 | 1980-08-22 | Rhone Poulenc Ind | PROCESS FOR THE PURIFICATION OF AN IMPURE PHOSPHORIC ACID |
US4297334A (en) * | 1979-02-21 | 1981-10-27 | Calgon Corporation | Process for removing color bodies from brown phosphoric acid |
US4341638A (en) * | 1979-10-17 | 1982-07-27 | International Minerals & Chemical Corp. | Purification of phosphoric acid |
US4285920A (en) * | 1979-11-08 | 1981-08-25 | Stauffer Chemical Company | Solvent extraction process for preparing purified phosphoric acid and sodium phosphate salts |
DE3003250C2 (en) * | 1980-01-30 | 1982-09-16 | Klöckner-Humboldt-Deutz AG, 5000 Köln | Process for separating solids from phosphoric acid |
US4311681A (en) * | 1980-05-19 | 1982-01-19 | Fmc Corporation | Method of regenerating phosphoric acid extraction solvent |
US4407725A (en) * | 1980-08-21 | 1983-10-04 | International Minerals & Chemical Corp. | Regeneration of activated carbon |
US4495165A (en) * | 1983-10-03 | 1985-01-22 | Gurza Guillermo R | Method of purification of phosphoric acid |
US4551320A (en) * | 1984-10-12 | 1985-11-05 | Fmc Corporation | Treatment of concentrated phosphoric acid |
US4585636A (en) * | 1984-10-17 | 1986-04-29 | Negev Phosphates Ltd. | Process for the manufacture of purified phosphoric acid |
US4780295A (en) * | 1987-07-06 | 1988-10-25 | Fmc Corporation | Process for purifying phosphoric acid |
DE3806822A1 (en) * | 1988-03-03 | 1989-09-14 | Hoechst Ag | CONTINUOUS PROCESS FOR COMPLETELY REMOVING ORGANIC IMPURITIES AND COMPLETELY DISCHARGING PRE-CLEANED WET PHOSPHORIC ACIDS |
TN2016000226A1 (en) * | 2013-12-02 | 2017-10-06 | Ecophos S A | Source of phosphate for agriculture and the food industry. |
DE102016212242B4 (en) * | 2016-07-05 | 2019-02-07 | Technische Universität Bergakademie Freiberg | Process for the production of phosphoric acid from phosphorus-containing primary and secondary raw materials |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2044940A (en) * | 1933-11-25 | 1936-06-23 | Grasselli Chemical Co | Preparation of a soluble phosphate |
GB467843A (en) * | 1936-01-06 | 1937-06-24 | Kunstdunger Patent Verwertungs | Method of separating fluorine and aluminium from solutions obtained by treatment of raw phosphate with acids |
FR1011491A (en) * | 1949-02-18 | 1952-06-23 | Ruhrchemie Ag | Process for the preparation of sodium phosphates from sodium sulfate |
GB1052410A (en) * | 1962-11-14 | |||
GB302485A (en) * | 1963-04-01 | 1928-12-20 | Saji Tsujita | Improvements in or relating to distance meters |
US3645682A (en) * | 1967-09-13 | 1972-02-29 | Multi Minerals Ltd | A process for producing phosphoric acid by the use of ion exchange resins |
DE2029564C3 (en) * | 1970-06-16 | 1978-06-22 | Giulini Chemie Gmbh, 6700 Ludwigshafen | Process for the production of pure alkali phosphates from rock phosphoric acid |
ZA746708B (en) * | 1973-11-02 | 1975-11-26 | Uss Eng & Consult | Method of making high purity alkali metal phosphates from wet-process phosphoric acid |
-
1975
- 1975-08-14 US US05/604,519 patent/US3993736A/en not_active Expired - Lifetime
-
1976
- 1976-06-28 IL IL49927A patent/IL49927A/en unknown
- 1976-07-23 ZA ZA764436A patent/ZA764436B/en unknown
- 1976-07-28 FR FR7622973A patent/FR2320902A1/en active Granted
- 1976-07-30 JP JP51091235A patent/JPS5223597A/en active Pending
- 1976-08-06 GB GB32812/76A patent/GB1547213A/en not_active Expired
- 1976-08-10 DE DE19762635912 patent/DE2635912A1/en active Pending
- 1976-08-10 NL NL7608884A patent/NL7608884A/en not_active Application Discontinuation
- 1976-08-13 CA CA259,045A patent/CA1071836A/en not_active Expired
- 1976-08-13 ES ES450702A patent/ES450702A1/en not_active Expired
- 1976-08-13 BE BE169773A patent/BE845149A/en unknown
- 1976-08-13 BR BR7605322A patent/BR7605322A/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4250155A (en) | 1978-06-09 | 1981-02-10 | Gardinier, Inc. | Method of purifying phosphoric acid after solvent extraction |
Also Published As
Publication number | Publication date |
---|---|
ES450702A1 (en) | 1977-12-16 |
BR7605322A (en) | 1977-08-09 |
US3993736A (en) | 1976-11-23 |
JPS5223597A (en) | 1977-02-22 |
FR2320902B1 (en) | 1979-09-07 |
IL49927A0 (en) | 1976-08-31 |
CA1071836A (en) | 1980-02-19 |
ZA764436B (en) | 1977-07-27 |
NL7608884A (en) | 1977-02-16 |
BE845149A (en) | 1977-02-14 |
DE2635912A1 (en) | 1977-03-03 |
IL49927A (en) | 1978-08-31 |
FR2320902A1 (en) | 1977-03-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |